Wave attenuation due to ice cover: an experimental model in a wave-ice flume
Waves penetrate deep into the ice covered seas, inducing breakup of the ice cover. Concomitantly, the ice cover attenuates the wave energy over distance, so that wave impacts die out eventually. Observations of wave attenuation and concurrent wave-induced breakup in the literature are serendipitous...
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ftunivnewcastnsw:uon:33718 2023-05-15T14:21:55+02:00 Wave attenuation due to ice cover: an experimental model in a wave-ice flume Dolatshah, A. Nelli, F. Alberello, A. Bruneau, L. Bennetts, L. G. Meylan, M. H. Monty, J. P. Toffoli, A. The University of Newcastle. Faculty of Science, School of Mathematical and Physical Sciences 2017 http://hdl.handle.net/1959.13/1394567 eng eng American Society of Mechanical Engineers (ASME) ASME 36th International Conference on Ocean, Offshore & Arctic Engineering (OMAE2017). ASME 36th International Conference on Ocean, Offshore & Arctic Engineering [presented in ASME Proceedings, Vol. 8: Polar and Artic Sciences and Tecnology; Petroleum Technology] (Trondheim, Norway 25-30 June, 2017) 10.1115/OMAE2017-61548 waves flumes ice conference paper 2017 ftunivnewcastnsw 2018-12-17T23:23:54Z Waves penetrate deep into the ice covered seas, inducing breakup of the ice cover. Concomitantly, the ice cover attenuates the wave energy over distance, so that wave impacts die out eventually. Observations of wave attenuation and concurrent wave-induced breakup in the literature are serendipitous due to difficulties in making measurements in ice covered seas. Hence understanding of wave-ice interactions remain uncertain. Here we present measurements of wave propagation through ice covered waters in the new experimental wave-ice facility at the University of Melbourne. The facility comprises of a 14m long and 0.76m wide flume in a refrigerated chamber, where temperatures can be lowered down to -12 degrees Celsius to generate a continuous ice cover on the water surface. A wave maker, installed at one end, is used to generate regular waves, ranging from gently-sloping to storm-like conditions. Wave attenuation rates are determined from video-camera images of the displacements of markers embedded in the ice cover. The experiments investigated wave propagation through the continuous ice cover, breakup, and propagation through the broken ice cover. Spatial evolution of the breakup and geometrical properties of floes are monitored and correlated with incident wave properties. Wave attenuation over broken ice is investigated and compared against the continuous ice case. Conference Object Arctic ice covered waters NOVA: The University of Newcastle Research Online (Australia) |
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NOVA: The University of Newcastle Research Online (Australia) |
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English |
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waves flumes ice |
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waves flumes ice Dolatshah, A. Nelli, F. Alberello, A. Bruneau, L. Bennetts, L. G. Meylan, M. H. Monty, J. P. Toffoli, A. Wave attenuation due to ice cover: an experimental model in a wave-ice flume |
topic_facet |
waves flumes ice |
description |
Waves penetrate deep into the ice covered seas, inducing breakup of the ice cover. Concomitantly, the ice cover attenuates the wave energy over distance, so that wave impacts die out eventually. Observations of wave attenuation and concurrent wave-induced breakup in the literature are serendipitous due to difficulties in making measurements in ice covered seas. Hence understanding of wave-ice interactions remain uncertain. Here we present measurements of wave propagation through ice covered waters in the new experimental wave-ice facility at the University of Melbourne. The facility comprises of a 14m long and 0.76m wide flume in a refrigerated chamber, where temperatures can be lowered down to -12 degrees Celsius to generate a continuous ice cover on the water surface. A wave maker, installed at one end, is used to generate regular waves, ranging from gently-sloping to storm-like conditions. Wave attenuation rates are determined from video-camera images of the displacements of markers embedded in the ice cover. The experiments investigated wave propagation through the continuous ice cover, breakup, and propagation through the broken ice cover. Spatial evolution of the breakup and geometrical properties of floes are monitored and correlated with incident wave properties. Wave attenuation over broken ice is investigated and compared against the continuous ice case. |
author2 |
The University of Newcastle. Faculty of Science, School of Mathematical and Physical Sciences |
format |
Conference Object |
author |
Dolatshah, A. Nelli, F. Alberello, A. Bruneau, L. Bennetts, L. G. Meylan, M. H. Monty, J. P. Toffoli, A. |
author_facet |
Dolatshah, A. Nelli, F. Alberello, A. Bruneau, L. Bennetts, L. G. Meylan, M. H. Monty, J. P. Toffoli, A. |
author_sort |
Dolatshah, A. |
title |
Wave attenuation due to ice cover: an experimental model in a wave-ice flume |
title_short |
Wave attenuation due to ice cover: an experimental model in a wave-ice flume |
title_full |
Wave attenuation due to ice cover: an experimental model in a wave-ice flume |
title_fullStr |
Wave attenuation due to ice cover: an experimental model in a wave-ice flume |
title_full_unstemmed |
Wave attenuation due to ice cover: an experimental model in a wave-ice flume |
title_sort |
wave attenuation due to ice cover: an experimental model in a wave-ice flume |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2017 |
url |
http://hdl.handle.net/1959.13/1394567 |
genre |
Arctic ice covered waters |
genre_facet |
Arctic ice covered waters |
op_relation |
ASME 36th International Conference on Ocean, Offshore & Arctic Engineering (OMAE2017). ASME 36th International Conference on Ocean, Offshore & Arctic Engineering [presented in ASME Proceedings, Vol. 8: Polar and Artic Sciences and Tecnology; Petroleum Technology] (Trondheim, Norway 25-30 June, 2017) 10.1115/OMAE2017-61548 |
_version_ |
1766294612123582464 |